weapons. they are taking these reports very seriously, though, and trying to determine if this was, in fact, the case. now, of course, president obama has made it clear that his red line in syria is the use or movement of chemical weapons. what specifically will he do if that has happened, the administration has not said, but i can tell you that one option they are weighing is to arm the rebel forces in syria. senators mccain and graham have said that this administration should move forward with that if it is, in fact, confirmed that chemical weapons were used. but martin, right now, the administration being very careful with its wording because there is no confirmation that chemical weapons were, in fact, used. having said that, they are quite disturbed by the increase in violence and ongoing violence. they continue to call for assad to step down. >> i assume, kristen, prime minister netanyahu is going to press the president on syria as much as he will on the issue of iran, given developments today. >> reporter: absolutely.